Ok i have my pc 7424 on the way and i have 1z PP,MP and Glanz wax that i ordered last week. I need to choose some pads now. I know i need some orange, white and gray finishing pads. My question is where to buy and whats the best? Im leaning more towards the 4" pads since i hear they work better with the pc and for my truck that im polishing seem like they will work better. I dont have many flat surfaces, cowl induction hood, stepside bed and what not. My most flat surface is the doors and roof so 4" should work great. Any help would be appreciated!